Keyless padlock



March 26, 1935. w R, LARTER 1,995,544

KEYLEss PADLOCK Filed Aug. l, 1953 4 INVENTOR @www li. gar'c g :ORNEYiatented Marl 26, 1935 "75 I y i UNITED s'mrlazs fr'gTlaziWr fori-*ice lWarren R; Lai-ter, South Orange; N. J., assigner to Latter & Sons,Newark, N. J., a corporation Yof `New Jersey. L

This invention relates to a padlock, and more arm 4 'ofthe latchterminates in a hook and cam' particularly to one of thekeyless type.formationV 7 and 8 .adapted to cooperate with a One of the objects of myinvention is to produce notch and vcam formation .9on the' arm 10 of thea padlock havingr a smoothcontinuous surfaceV shackle 11. As will beseen from Figures 2 and i with no vparts projecting or extending fromthe 5 the .outer surface. of the llatch 4 is nishedto '5,

casing other 'than the shackle whereby the pada contour Vto correspondwith the opposite'edge lock may be' Very advantageouslyv used as an l2of the casing and the interlocking formations: identification lock foruse in special cases', for 7, 8 and 9 on the latch and shackle are suchthat example, where a person has a large number of the afm 4 0f ,the.latch Substantially llsli'fhe i0 similar keys on akey ring, oneparticularv key that notched. out Opening in the flanges 0f the GesineT10 is used very frequently may be supplied with one members v1 and 2 sothat when `the latch and of these small locks whereby the key can bereadily the casing members have been plated and finally picked out inthe darkness by merely locating the finished the latch armican hardly bediscerned. lock and thereby the key. The latch member has an arm 13.against which 15 While I have stated above that the lockto b el Spring14 presses t0 hold the latch in the T101" lf described herein isvespeciallyadapted for identimal locking D'OSiiOn 3S indicatedl in Figure2- cation purposes, there may be other fields of use The spring 14 isheld Within the frame meInber where a keyless padlock may be used, forexample, 6 in any satisfactciy manner as by den'ing in 2 it may be usedto lock'a bracelet on the'wristof 111g l5 0n the flame S0 that'the 111genters the 2o a wearer and atthe same time act as AanidentificaccnVOluiOnS 0f the Spring 14. The freine IneIn- 2.0 tiondevice in whichv latter case the name or' ber 6 carries a'socket element17. .As shown in initials .ofthe owner could be marked or engraved theSectcn Figure 5,1ilie frame member 6 is formed thereon. It may also beused on dog collars. 0f One Piece connected by a bridge 178 which may My.invention Vwill be '.readilyunderstood by preferably be YformedSomewhat concave terre.- reference to the a'nnexed drawing wherein Videa Seal? for the tubular socket member' 17 25 Figure 1 is a, plan View,approximately three which is'anchored in its seatin any satisfactory ltimes full size, of a lock especially designedas an manner as by soldenThe. member 17 has 2f 10nidenueatien1oek`,the position of the shackleand eiudinelslct 19 Wthinvwhieh vthe end ef a pin locking latch whenlmoved t0 releasing position 20 travels. The pin 20 is mountedtransversely in 3o being indicated by d0ttetl1ine5- the end of the arm16'01" the shackle 11. Near 3o Figure 2 is 'a View Similar 'to Figure l,but with the shackle end, the member 17 has a'transverse one of thecasing members removed showing` the S1013 21 htecepuhg the slot 19s@that Whsh the interior pal-ts of the 1001; shackle arm 16 ismovedoutwardly the end of.

Figure 3 is a Side view of Figure 2, but with' the the pin 20 projectingfrom the arm 16 may enter 35, shackle turned 90 and with the odgepoi-tion of the arcuate transverse slot 21 thereby allowing 35 theoosiiig broken awo'y i Y the shackle 11 to be turned as indicated inFigure Figure 4 iS a boi-,tom View of Figure 2 but With 3. To move vtheshackle 11.to openvposition after thoend portion of the Casing removed'o f it has been released from the interlock forma? i Figure 5 is asection on the line 5 5 of Figure 2,. tlohs 7: 8 and 9 a' spring 22 isprovdedahd posi; i 40 and ,t o' 1- t i tioned within the circular socket17, l 40 Figure 6 isa perspective View of asocket mem- Assuming thePadlhsk to ,he ih locked position ber in which one of the arms of theshackle is as shOWh by the full hues 1h Flguls 1 and 'With positioned ythe latch and shackle interlocked as shown f in Referring to the detailswherein he numbers Figure 2y to release the shackle 01 uhlock the 45.refer to correspondingV parts in the various views, padlock Pressure isapplied t0 the shackle 1.1 t0' '45l the casing is composed of ktwosimilar members 1 Ward' the hissing. This forces the Cam surfaces i and.2 having lnturned anges which. moet along 8 and 9 on the latch andshackle to ride onefon` the line 3; the two parts of the casing areheldV the other, thereby ,forcing the latch AOllilvelclly togetherin anyVsatisfactory manner as by rivets albOlli: as indicated in Figure 1Wheleby'it vmay 23, two 0f which are indicated, The flanges 0n beengaged and held in this position and when 50 one edge 0f the casingmembers 1 and 2 are the'pleSSllle iS released -IOIII the shackle 11 thenotched out to form anv opening withinwhich is spring 22 will cause itto move so thatthe armV positioned one arm 4 of a latch member which is10V is moved out of the casing and the shackle can pivoted at 5 to aframe member 6 carried within be turned as indicated in vFigure 3. Afterthe the casing members l and 2. The end of the restraining force isremoved from the latch the 55 Having thus described my invention, what Iclaim is: 1. A padlock including a frame memberfand a` casing having anopening in one edge thereof and holes in one end for the arms 'of ashackle,` a socket member carried lby the frame member, a shackle havingits arms extending through said casing holes and one arm longitudinallymovable Vin said socket, meansccoperating betweensaid socket and arm top-ermit the shackle arm therein toiturn in the socket when the 'shackleis in unlocked position, a springpositioned'in'said socket tending topush said shacklearm tothe position Where it maybe rotated, alatchcarried by'said frame and having an arm normally lying in said casingopening and substantially nllingthe same,

' the end of said arm terminating inacam and hook, saidshackle havinganother :arm terminating in a cam and notch for Vthe purpose described,and resilient means carried by the frame member for acting on said latchto hold it in normal locking'position. Y

. 2. A padlock as set forth in claim l further characterized inthat saidcasing is made ofi two similar parts fastenedtogether and having in-.-

turned flanges which meet along their edges, the flanges on one edgebeing notched out to form said opening for the latch armand also beingcut out on one end to form the holesY for the shacklearms.

'3. A keyless padlock including acasinghaving anopening in one edge andshackle holes in one end thereof, a shackle having arms extendingthrough said holes into the' `casing one arm terminating in a notchhaving a'cam surface, a frame member within the casing, a latchcarriedby the frame member and having an arm. with an outer surface' conformingtothe opposite edge of the casing and lying in and lling the openingflush with the edge .of the casing, said latch arm terminating'in ahookand cam to cooperate. with the notch and cam on the shackle arm wherebypressuretoward the casing on the shackle forces the latch outwardly soit can be released from engagement with theshackle, resilient meanscarried by the frame member forholding the latch in normal lockingposition, a socket member vcarried by the frame for receivingk the otherarm of the shackle, meanscooperating between the socket and said arm topermit the shackle to be rotated after being released from said latchand a spring positioned in said rsocket, acting to move the shacklearm-therein be rotated. Y 4. A keyless padlockhaving a'casinghand a lshackle having arms extending into the casing,

a latch positionedin one edge wall of the casing and having its outersurface finished to simulate the opposite edge of the casing, said latchand to a position whereitmay.

one of the arms ofthe shackle having cooperat-' ing interlockingformations for normally holding the latch in proper position so itssurface and that of the `casing conform, with means within the casingfornormally holding them in interlocking position said latch and one armalso having cam surfaces whereby pressure on the shackle toward thecasing willforce said latch outwardlyso. it may be engaged to releasethe interlock.

5.*A keyless padlock having a casing and a shackle having arms'extending into the casing, a latch positioned in a part of the casingand having its outer surfaces finished to match up with the adjacentparts of the casing, said latch and one of the armsof `the shacklehaving cooperating interlocking formations for normally holding the.latch in proper position so its surface and that 'ojthe casing conform,with means within the casing for normally holding them in interlockingposition saidlatch and one'arm also having cam surfaces whereby pressureon the shackle toward the casing will force said latch outwardly so it`may be engaged to release the interlock.

camcooperating with said latch to release said latchand shackle frominterlocking relation by pressure on the interlocked kshackle toward thecasingwhereby said latch part is moved so it can bev engaged to preventits return to interlocking is removed from the cluding a cam on said:member engaged by saidy shackle. Y A l 8. A padlock including arectangular' casing having a slot in one edge thereof, a shacklemovableinwardly and outwardly of one end ofsaid casing, a right angularlyshaped member pivoted between its arms in said casing and having one armmovable in one direction to project outwardly of said slot, saidv memberbeing tensioned Vfor movement of said arm in the opposite direc.-

tion to a slot'closingposition, the other arm of saidmemberbearingagainst the otherend of said casing to limit movement of the member insaid opposite direction, and coengaging latching devices'on said shackleand memberv operatively related by inward movement of said shackleiandrendered Vineffective-by movement of the rst mentioned arm; toprojecting position.

. WARREN R.' LARTER.

